Absence of OVULATION. Anovular menstruation occurs when a woman takes the contraceptive pill (see under CONTRACEPTION – Non-barrier methods).
an increase in the thickness of the cells of the *endometrium, usually due to prolonged exposure to unopposed oestrogen, which can be endogenous, as in anovular menstrual cycles; or exogenous, deriving, for example, from *hormone replacement therapy or an oestrogen-secreting tumour. It is classified as simple, complex, or atypical. Endometrial hyperplasia most commonly presents with abnormal uterine bleeding and accounts for 15% cases of postmenopausal bleeding. It may also be asymptomatic, and in some cases regresses spontaneously without ever being detected. The presence of atypical cells may lead to *endometrial cancer. Treatment can include progestogen therapy or surgery (see endometrial ablation); hysterectomy is advised when atypical changes are present.... endometrial hyperplasia
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